Device for guiding, supporting, and carrying an apparatus for felling of trees, cutting of trunks, and the like



A. 0. M. LUFGREN. SUPPORTING, AND CARRYING AN APPARATUS FOR FE LLING 0F THEES,'

DEVICE FOR GUIDING CUTTING OF T RUNKS AND THE LIKE.

I APPLICATION FILED JUNE 30, I921- 1,410, 1 98. atented Mar- 21, 1922.

l 7 M m w I I MT I I I I I I l l I II II ADJ Q UNITED STATES ALBERT OLOF 'MELCHER LOFGREN, 0F STOGKHOLM, SWEDEN, ASSIGNOR T0 ARVID PATENT ()FFICE.

GUSTAF MICHAEL HERNMARCK, 0F DJURSHOLM, SWEDEN, AND OSCAR ROBERT GRONKWIST, OF STOCKHOIJM; SWEDEN.

DEVICE FOR GUIDING, SUPPORTING, AND CARRYING AN APPARATUS FOR FELLING OF TREES, CUTTING OF TBUNKS, AND THE LIKE.

Application filed June 30, 1921.

To all whom it may concern:

3e it known that I, ALBERT OLor Mincirnn Loronnn, mechanic, a sub ect of the Kin of Sweden. and resident of Sture atan .NO, 1303869, issued h'Iay 1a, 1919. In and patent I have shown means for resisting the pull of the saw blade while said blade is in use in felling or bucking a tree. The device used in felling a tree however has not proved satisfactory in'practice as it is necessary to separately transport the same from tree to tree and the device must be placed in the proper position on the tree in order to perform the operation of felling. As it frequently happens that the ground at the stump is not suited for the proper support of the saw resisting'means I have devised an improved device to eliminate the objections of the known device.

The primary object of the present invention is to furnish an improved device for guiding and supporting a sawing apparatus while the same is in use in felling trees, and this device is so mounted on the saw frame that it may be readily swung to an inoperative position so that it will not form an obstruction or projecting part while the saw ing apparatus is being transported from one tree to another.

With the foregoing object outlined and with other objects in view which will appear as the description proceeds, the invention consists in the novel features hereinafter described in detail, illustrated in the accompanying drawing, and more particularly pointed out in the appended claims.

Referring to the drawing:

Figure 1 is a plan view of a portion of a sewing apparatus with my improved guiding and supporting device attached thereto,

Specification of Letters Patent.

Patented Mar. 21, 1922.

Serial No. 481,644.

Figure 2 is a sectional view of the device and a portion of the saw frame.

Figure 3 is a detail view partly in section of a modification. V

Figure l is a sectional view of the guiding and supporting device taken on line 1-4; of Figure 1.

In th drawing, 1 designates a frame I having an extension 2' through which travels the saw blade 3. Mounted on the extension 2 is a supporting plate IO 'thrOug-h which passes a pin 4 that extends through a socket E on a: guiding and supporting device 6, and is provided with a wing-nut 5 which is employed for pivotally and removably secur ing theme'mber 6 to the saw frame. The plate 10 carries an upwardly projecting post 8 having a head 9, and this post-is engaged by a fork 7 projecting from' the member 6. The post 8 and fork? cooperate to eliminate the swinging movement of the member 6' in a counterclockwise direction about the pivot I. V V

The. plate 10 carries a casing or socket 11 in which is mounted a 'springpi'essed plunger 12 that functions to engage'the back of the member 6 for preventing movement of the member 6 in a clockwise direction when the device is in operation for felling trees. By exertingforce to swing the member 6 in clockwise direction, the pin 12 will be depressed and this will permit the member 6 to swing to the dotted line position shown in Figure 1, so that it will lie in substantial alignment with: the exposed portion or run of the saw-blade 3.

In moving the sawing apparatus from one tree to another, it is desirable that the member 6 occupy the position shown in dotted lines so that it will not catch on underbrush, or trees and the like. When the apparatus is to be used for felling a tree, the member 6 is swung to the position shown in full lines in Figure 1, and then the sharp edge 6 of said member 6 will out into the bark of the tree, so that the member 6 will function to guide and support the sawing apparatus when its is employed for felling trees.

Instead of the members 11 and 12, I may employ a manually movable plunger 14 which is pressed by a spring mounted in a caslng or socket 1.3 carried by the member 6. hole in plate and is actuated. by hand lever asishown in Figure 3.

From the foregoing"Tbelie've that the construction, operation. and advantages or the invention may be readily understood by those slnlledin-the art, and I am aware that various changes may be made in the construction illustrated without departing from the spirit of the invention as expressed in the following claims.

Vvhat I claim and desire to secure by Letters-Patent is a Y 1. In combination saw-frame, a saw blade carried thereby and having an exposed run, and a guiding member extending substantially at right angles to the exposed run of the saw blade and having a cutting edge adapted to cut into a tree and to aid in supporting the saw as the blade moves through a tree in felling the same.

' 2. The combination with a saw-frame o't a guiding member pivotally connected to said frame and provided with a beveled edge 1 1' M'.- gu ding memoei in a position at right angles to the exposed run of the saw blade.

at. The combination with a saw frame, of l V a substantially stra ght guiding'member pivotally connected to said frame, and means for locking said member in fixed positions at angles to each other.

5. A combination of the kind defined by claim 4 in which the locking means includes cooperating elements on said frame and member.

The member 14: is adapted to enter a 6. The combination with a saw frame, of a guiding member detachablyrand pivotalbv connected to said frame, and means for locking said member in fixed angles to each other 1 '7. The combination witlra saw frame, of a guiding member pivotally connected to the same, and locking means located at diametrically opposite sides of the pivot connection for fixedly securing said guiding member in a predetermined position.

8. The combination with a saw frame member of a substantially straight guiding member'pivotally connected thereto, a pin provided on one of said uembc-zrs a fork provided on the other member and en; able with said pin, and means torlocsing said members together for hole ing the for in engagement with. said pin.

9. The combination with a saw frame lmeniber, of a guiding member pivotally connected to, said membery'and a springpressed plunger provided on one oi said members and engageable with the other m ember for use in looking said guiding member in a fixed position on said frame member.

10. The combination with asaw frame member, of a substantially straight guiding member pivotally connected to said frame member and having a cutting edge, cooperating elements carried by said members and arranged at one sideof the pivot connection for preventing said guiding member from swinging about the pivot in one direction. beyond a predetermined point, and a releas able catch member arranged on the opposite side of said pivot connection for prei 'enting the guiding member from swinging in the opposite direction r ln witness whereof I have hereunto set my hand in presence or two witnesses ALBERT AGLOF" MEHZHER LilFGREN.

Witnesses: l i V CARL TRLUNDHOLM,

' R. TOTTERMAN.

positions at 

